Yellow Metals - Characteristics

Yellow Metals - Characteristics
Spec.
Most Commonly Used Conditions
Description
Most Commonly Available Forms
Characteristics
Typical Uses
C101
SOFT; HALF-HARD; HARD
Electrolytic tough pitch high conductivity copper
sheet, plate, bar & tube
High electrical conductivity and corrosion resistance. Ductile. Limited machining capabilities.
Electrical conductors, cold heading applications, holloware, architectural cladding.
C106
HALF-HARD
Phosphorus deoxidised non-arsenical copper (Dona)
sheet, plate, tube
High phosphorus content reduces electrical conductivity, but greatly increases weldability in most forms. Ductile. Limited machinability. Good corrosion resistance.
Gas and heating installations, spinning, pressing, food processing equipment.
CZ101
SOFT
Gilding metal
sheet
Very good corrosion resistance. Ductile. Very good for brazing and soldering, but limited machining capabilities. Attractive golden colour.
Jewellery, display cabinets, name plates, fascias.
CZ106
SOFT
Deep drawing brass (cartridge brass)
sheet
Very ductile, especially where deep pressings need to be allied with strength. Very good for brazing and soldering, but limited machining capabilities.
Fire extinguisher bodies, lamp caps, hinges, flashlight cases.
CZ108
HALF-HARD
Common' brass
sheet, plate, bar, tube, sections
General purpose brass with good ductility for bending and simple presswork. Good for brazing and soldering, but limited machining capabilities.
Instrument covers and containers, radiator tanks.
CZ112
Naval brass
plate, bar
The addition of tin greatly improves corrosion resistance, especially in sea water. Good ductility if hot formed. Good for brazing and soldering, but with limited machining capabilities.
Marine and underwater equipment.
CZ114
High tensile brass (formerly manganese bronze)
bar
Combines high strenth with good corrosion resistance. Good ductility only if hot formed, good for soldering and brazing. Good machining capabilities.
Heavy engineering, shipbuilding
CZ120
HARD
Leaded brass engraving quality (compo)
sheet
Good machining capabilities. Produces a good clean cut in the hard condition for close tolerances. Ductile only if hot formed. Good for brazing and soldering.
Gears, clock parts, engraved plates.
CZ121-Pb3
Free machining brass (CZ121-Pb4 for increased machining speeds)
bar, hollow bar & sections
Excellent high speed machining capabilities, but with limited cold working properties. Good for soldering and brazing.
Machined components such as screws, nut & bolts. Architectural sections.
CZ126
HALF-HARD, HARD
70/30 arsenical brass
tube
General purpose brass with the addition of arsenic to reduce corrosion.
Condensers, heat exchangers, sanitary fittings.
CZ131
Rivetting quality brass (supersedes CZ119)
bar
High copper content improves ductility, whilst reduced lead content still retains limited machining properties. Excellent for soldering. Good for brazing.
Cold heading products, rivets, screws, trye gauges.
PB102
HARD
Wrought phosphor bronze
sheet, bar
High strength, good resistance to corrosion and corrosion fatigue make this grade suitable for components subject to friction. Limited machining capabilities.
Springs and instrument components.
CA104
Aluminium Bronze
bar
Addition of aluminium increases strength and greatly improves corrosion resistance. Good machining properties. Suitable for hot stamping. Readily welded via mig & tig.
Highly stresses bearings, and in the marine and chemical industries.
SAE660
Continuous cast leaded bronze
bar and cored bar
Suitable for unhardened shafts which are not subject to heavy side impact loads. Lead improves machining and plasticity. Will withstand some misalignment & short periods of inadequate lubrication.
Bearings for unhardened shafts.
PB1
Continuous cast phosphor bronze
bar and cored bar
The addition of tin improves corrosion resistance and strength. Designed for bearings running with hardened shafts where good lubrication and alignment are essential.
Bearings for hardened shafts.
LPB1
Continuous cast leaded phosphor bronze
bar and cored bar
The addition of lead increases plasticity & the reduction of tin lessens corrosion and abrasion resistance in this variant of PB1
Lower stressed bearings and fitting such as valves. Steam pressure fittings.
LB4
Continuous cast leaded bronze
bar and cored bar
Suitable for unhardened shafts which are not subject to heavy side impact loads. Lead improves machining and plasticity. Will withstand some misalignment & short periods of inadequate lubrication.
Bearings for unhardened shafts.
LG2
Continuous cast leaded gun metal
bar and cored bar
A good general alloy. Suitable where corrosion resistance and resonable bearing characteristics, but at a lower cost, are important.
Marine industry. Some water and steam fittings, intricate tight pressure castings.

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